Patek Philippe Celebrates 30 Years of Its Patented Annual Calendar

"Patek Philippe solved the issue 30 years ago with the introduction of Reference 5396 and its patented Annual Calendar complication. The movement is tuned such that it only requires one update per year, on the first of March, after altogether pesky February has wrapped up."

"Even when you do make that yearly adjustment, it's done easily, via push-pieces on the side of the case. All that is complemented by a moon phase display that's stunningly accurate, only deviating from the true lunar cycle once every 122 years."

"To celebrate three decades of the Annual Calendar, this year Patek Philippe is releasing a 38.5mm version of Reference 5396 in fully polished rose gold with a sand-beige sunburst dial, with faceted obus-style markers and faceted dauphine hands."

Patek Philippe introduced the Annual Calendar complication with Reference 5396, requiring only one date adjustment annually on March 1. This innovation simplifies date management for watch owners. The watch features a highly accurate moon phase display, deviating only once every 122 years. To celebrate its 30th anniversary, Patek Philippe is releasing a new 38.5mm version in polished rose gold with a sand-beige sunburst dial. The design is inspired by the Calatrava Reference 96, ensuring timeless elegance and functionality.

Read at Esquire